That movie is one of the silliest premises for a movie...
But I love it! (I call it one of my ‘guilty pleasures’...:)
We have radar today that far outclasses anything in that day.
Our pilots know how to drop unguided iron bombs and can do so with far greater accuracy and at greater speed than they ever could, and can do it without GPS
The AA gunners could probably not hit them easily at their speed
I still think it would be very one sided.
Making a movie like this you pretty much are throwing reality out the window anyway so you might as well have fun with it.
That was the biggest disappointment with the original, it ended right when it was about to get interesting.